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194 papers
Interplay between photon condensation and electron-electron interactions in molecular systems
Matteo Parisi, Elisabetta Paladino, Giuseppe A. Falci +4
We investigate a minimal molecular model consisting of square planar plaquettes hosting multiple electrons, whose dynamics is governed by a tight-binding Hamiltonian supplemented b…
Geometric effects in the Dyakonov-Shur theory of Teraherz photodetection
Riccardo Riolo, Marco Polini, Riccardo Mannella +1
Nonlinear resonances of plasma waves in field-effect transitors enable a well-known photodetection mechanism, first introduced by Dyakonov and Shur in the Nineties, especially suit…
Tuning Fermi Liquids with polaritonic Cavities
Riccardo Riolo, Andrea Tomadin, Giacomo Mazza +3
The question of whether or not passive sub-wavelength cavities can alter the properties of quantum materials is currently attracting a great deal of attention. In this Article we s…
Weak Coupling Theory of Magic-Angle Twisted Bilayer Graphene
Jihang Zhu, Iacopo Torre, Marco Polini +1
Strong correlations occur in magic-angle twisted bilayer graphene (MATBG) when the octet of flat moiré minibands centered on charge neutrality (CN) is partially occupied. The octet…
Photon condensation, Van Vleck paramagnetism, and chiral cavities
Alberto Mercurio, Gian Marcello Andolina, Francesco M. D. Pellegrino +6
We introduce a gauge-invariant model of planar, square molecules coupled to a quantized spatially-varying cavity electromagnetic vector potential A(r). Specifically, we choose a te…
Transition from acoustic plasmon to electronic sound in graphene
David Barcons Ruiz, Niels C. H. Hesp, Hanan Herzig Sheinfux +10
Fermi liquids respond differently to perturbations depending on whether their frequency is larger (collisionless regime) or smaller (hydrodynamic regime) than the inter-particle co…